Reciprocating gearing for grinding-wheel carriages



April 7, 1925 1,533,047

P. sToNER v RECIPROCATING GEARING FOR GRINDING WHEEL CRRIAGES .FiledNOW 18, 1920 iuhetS-Sheet l @Hofmu April 7, 1925.

P, STONER' RECIIR'OGATING GEARING FOR GRINDING WHEEL CARRIAGES QM knus, E kN mm.

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April 7, 1925. 1,533,047

P. STONER RBCIPROCAHHG GEARING FOR GRINDING WHEEL CARRIAGES Filed Nev. 1s, 1920 4 sheets-sheet s Paul ,S nner t @M mue/ April 7,1925.` 1,533,047

P. STONER RECIPRQCATING GEARIG FOR GRINDING WHEEL CARRIAGES Filed Nov. 18, 1920 4 Sheets-Sheet 4 IIL CARRIAGE DRIVE SHAFT Swan-16oz y Paul Soner 42 are in engagement the hand wheel forms manual means'to move the carriage. y vThe clutch member 42 is controlled by a yoke 51 pivoted at 52 onsleeve 48 andpstraddlin'g shaft "49., .This yoke is connected lto grinding wheel l lever by a vyieldab'le coupling consisting whereby it' may of a yoke 53 secured yto lever 35,`a yoke 54 secured to yoke 51, and a link 55 having.`

oted at 59 below the shaft on a hub 60 free;

tol oscillatefon the fixed bearing sleeve ,33

x surrounding spindle 79 and extending at its under side `from thenut 85 to a shouldervon sleeve The lower extensions .35" of` lever are affixed to-pivot 59 by pins 59 (Figure l3) A detent 61 slides in a recess in lever 35,

being forced downward by a spring 63 whose y ends rest in cored-out portions lof screw 57 and plunger-'61, respectively. The detent is prevented fronrrotating by a pinl and slot connection'at62 and'has an oppositely bevyeled vend-'portion engaging an oppositely- 64 removably beveled holding" lmember l mounted in the upper part ofsleeve 60. The movement ofr lever*y 35 inward andv outward on themachine is limited in one direction by engagement 4at two points with member 37, vand in the other by engagement of -a face 97 on thelever with a shoulder 98 onk vthe hub 60.HK I f The portion of lever '35 adjacentthe holding device -64 is shaped as in'dicated'in Figv. ure'4 with opposed. projecting edges 65 and 67 to engage the wings 6 6 and 68 of winged member 37and bring said member 'to the central position indicated in Figure 4, from the 'extremeposition of Figure 1er from the opposite extreme. The position of member 37 is determined by 'the reversing clutch i through shifter 31, roller 36, and projections 70 embracing the roller, consequently 69 and a lever 35 can move the clutch lever to central .position by its `action on member 37.

A downwardly extending yoke 71 integral with oscillatory hub .60 or fixed thereto carries pivot pin 59 (Fig. 2) land has adjust-y able screw-studs 72, 72 forengagement with the :lower arm .Y 34 of the shifter for the .re-

- iversinglclutch., It also carries a roller 73 at its lower .end engaging a yieldabledetent 7 4 having oppositely inclined faces tending `to move the. lever toone or the other extreme position and hold it there. Thehspring of the 'detent is held in place bv a screw plug 74.l i y l drives a hollowy spindlev 79 surrounding shaft 49.` Thissleeve `has a toothed portion lat 80,

Whose teeth engage with those of an internal gear 81 constituting a `Clog-wheel for lever-r 35. This gear is held between a flange A of frame A, and a-face plate 82 fitting within a flange 86 ofthe gear and sleeved on a bearing 83 in which shaft 75 is also journaled.

The face plate is heldin position by a nut '84on sleeve 83, andby hub 60 engaging an opening in the plate, the 'hub 60 preventing rotation of the face plate and being itself held lin e place by a nut 85 on rotary spindle 79.

Flanges 86 hold the dog-wheel 81 in operl ative relation to teeth '80 and it has a circuinadjustably mounted dogs'88 and 89 having ferential groove 87 in its face in which are,A

worms 90 and 91 meshing with teeth k92 yon dog-wheel j 81. The `dogs are adapted to strike alternately against the4 projecting por-l tion of a plunger 93- on lever 35, for reversing themachine and they are adjusted as.

shown by turning worms'90 and 91 tovary the length of stroke of' the machine` spring forces the plunger downward, and 1t may be withdrawn, as when the carriage is` to move past 'a dog 88 or 89, by drawing the cap 94 upward andturningit to bring the reversed portion ofslot 95 into position so that the pin 96 may hold the plunger up;

Inr operation the lcarriage is normally driven to and fro by the shaft 10 and the train of gearingto rack 30,v the dog-wheel acting to throw lever-35 first to one side, as in Fig;l 3, and then to the other sideb'y alternately' engaging opposite sides of plunger 93. After the lever is moved far enough to cause roller 73 to passthe crest of detent 74, this detent will act to throw the lever quicklOl) ly, but yieldingly to the other extremeposition, so vinsuring proper engagement of the reversing clutch. f

Vhen the operator desires to stop the ne y carriage hel movesthe lever 35v in-the 'direc-.1

down the other to hold the leverin place..l

As the lever moves over, e; g., from 'the position of Figure 3 toward the'carriage, its

edge 65will strike wing66, which at this time is in its extreme right-hand position, as

shown in Fig. 1. Lever 35 now swings memberf37 toward centralposition and this member byits projection 70 `moves clutch lever. i

31 toward neutral position for sleeve 24.y As the .leverrides along tace 66 this face has also a tendency to.- cam the lever towardcentral'position, and which ever one of levers l35 and 31 happens to be in the lead will also act on the other below the shaft where screws 72 are in position to engage arm 34,

This movement conti-nues until the parte. assume the position indicated in Eig;` 4i, the edges or fins 65 and 67 bearing on; fins (55 and 67 oi winged member 37 trein the lett, hand side, thel memberv 37, being moved clockwise to central position and lever 35 bein-g left slightly olil centerv as indicated by the dotted lines in Figure This i-soiiadvantage since there will be a tendencyr oni the part oifspring-pressed deteirt 74 to throw the lever 3,5j to one side as soon as it` is drawnI away from. the locked; position of Figure 4C, and so to throw in the clutchY and start them-achille.A lin this positionv oi parts the reversingelutclr will be nelrti-alrthef carriage will be stationary and the clutch,y 42, 42 will have been throavn in by the yoke 5l connected tol lever 35, the spina-1g 5.6- permit ting the clutch= member 42 to stop' when iets end engages. that of member 42,. and toremain uneonpled until the teeth` register.A The carriage may now be movedby hal-1dthrongh Wheel 50l and its connected parts.,4

Many variationsot structure will occur to; those skilled in the art,. and my device may be used in dilferent situation-s and various: arts all Without departing from my invention as hereinafter claimed..

In the claims, various specifieterms are used, but eqjnivalent devices are in every' in? stance intended to be covered by such terms,A which are recited specifically for ele-arnese, of description only, and not for limitation...

Having; thus tally described my said invention, what I claim as new and desireto: secure by Letters Patent, isz. f

l.. 1n a grindingmachine, a driveni gear, reversible gearingto, drive the same'- in opposite directions includingoppositel-y rotating devices, a reversing member adapted to( engage said devices in alternation,y ai shifter for said clutch member, a lever adapted to operate the shifter by swinging With the shifter and means adapted to be renderedopexrative by a different movement of said lever for disconnecting said reversin member, sixbstantially as set forth.,

2. In a grinding machine, a driven gear,l reversible gearing to drive the Same in op,- posite directions includ-ingoppositely rota-U ing devices, a reversing clutch member adapted to engage said gears in; alternation, a shifter for said clutch, a lever operatively connected to said shifter and movable in one plane to aetuate it toy reverse the clutch.

and also movable in another' plane, to place it in neutral position, substantially as., set forth.

3. In a grinding,` machine, a driven. mear, reversible gearing toy drive the same in op; posite directions including oppositely rotatino; gears, a` reversingclutch member. adapted to engage said gears` in alternation, a pivoted shifter "for said clutch, a lever pivoted coaxally withv the shiiiter and adaptedl to, actuateit to; reverse the chi-tch,y

said lever having a, lost motion; connection y Wlnh thel Shiiiterf, snbstantialliyas set forth.,

4d In a: grinding; machine, a driven gear, reversible gearing to drive the same inop?` postte` directions includingA opposi-tely7 rotating` gea-rs, a reversing clutch member adapted( to, engagesaid, gear in` alternation, a shifter for'the clutch, a levermovable' on, the same anis as the shiiiter to operatev the same, and also? Inova/ble on a. different axis to, placey the reversible elatch, inactive positioln. substantially as.' set fortln y 5.-., lina grinding machine, ay driven gear, reversible;l gearingrtxoY drivel the same in opposite directions including oppositely rotatingi gears, a reversing.- elnteln memberx adapted taeng Te-said; gears in alternation, a shifter for the reversing membent a coaxially' pivoted lever having mea-.nato move the samen, a vvinggedv member han/ingengagev ment with the clutch member to,y move it tov neutral, position, and meansito operate the winged member, substantially asset fortln 6. In a grinding;` machine a driven gear, reversible. gearing'z;l to.. driveA the same inoppostte.A4 dii. ctions -incliidin'g oppositely' ro tary driving; gea-rm a reversing; clutch inemr ber adapted' toL eng-age. said. Ofears in, alternation-, ai Sliitter for the reversing member,l a coa-Xially pivoted lever havingl means: to; move the same, a Winged member having enf. sagement` with, the clutch. member to move it t-ooneutral position, said lever being; adapt?. ed to. operate said Winged; member, substantially as set forth.

`brake for the correspondingclutch membe,

to hold said manually operable shaft againstrotatiom substantially asset forth. y

8. In a grind-ing machine,4 a.v driven gear, a power Shaft to drive the same, a manually operable shaft to drive thegear, a. third. shaitit drivein from. theY powershalt, a line spindle driven, by the latte-r,l shaft` and; sur-4 rounding the; manually operablel shait, and reversingmcansfor the powershaft inclndk ingit a lever andameans. operated said live spindle tomove said; leverin opposite directions to actuate said reversing; means, sabstantiallyfas set forth.,

9. Iln a. grinding' machine,l a driven gear,.- a power shaft to; drive the saine, a; mannah ly operable shaft'` to, drive the carriage,` a thi-rdV shaft driven from. the pew-.er shaft, live spindle drivenby, the` latter sha-ft. and surrounding;l the ymanually operable shaft,v

and, revel-asin means for thel power shaft in- 1 cludingf a reversible clutch@ member, a lever tenet-nate the same, a doggwheel'having dogs l to move said lever, the dogs. being adjust- `hold the .second clutch in inactive relation while the power-operated means is connected to the gear, substantially as set forth.

11. In combination, a driven gear, a manually-operable shaft adapted to drive the same, power operated means adapted tol drive ythe saine comprising a swinging lever, a dogging device adapted to swing the lever, and a live spindle'about the shaft to operate the dogging device.

12. In combination, a reversible clutch, `a lever to operate the same, a clogging wheel to` swing the lever in reve-rse directions, a spindle to drive the dogging wheel, a bearing for the spindle, a shaft vadjacent the spindle for driving it, a bearing for the shaft, a face plate holding saidY wheel .in place and means on the bearings for said shaft and said spindle to in position. l

13. In combination, a reversing clutch having a pair of spaced clutch members, a

reversing clutch member adapted to engage either of them, a shifter pivoted on an axis extending vtransversely of the line-fof movement of 'the reversing member, and an independently pivoted hand leverconnected to the shifterfor actuating it by movement in three different directions to cause theclutch member to assume forward, reverse or neutral position respectively, substantiallyy as set forth.

14e. In combination, a reversing clutch, a shifter for the reversible member thereof, a member vengaging the shifter and having wings withinclined faces, a lever having a pivot in the same plane with those of the shifter and the winged member and havingv fins at adjacent edges to bear against saidwings whereby each of said members is moved toward a central position when the lever is moved into engagement with the winged member.

15. In a grinding machine, a driven gear, reversible gearing -to drive the same in op-posite directions, j including a reversible hold the face-platel member, and means for moving the same into neutral position comprising, a shifter von, a horizontal pivot, a lever adapted to inoperative.

17 In a grinding machine, a driven shaft,

a manually-operable shaft adapted Jtodrivey said first-namedshaft, a bearing concentric with the second shaft, a power shaft eX- teiiding transversely 'of the second shaft, a clutch thereon and means pivotally mounted on said bearing for rendering said clutch active or inactive thereby causing the power shaft to drive or release the carriage.

18. In combination, oppositely 'rotatable clutch members, a reversing member adapted to engage either clutch member, a shiftertherefor, a bearing for the shifter, a hub pivoted 'on the bearing concentrically with the shifter, a lever swingable with the hub and also pivoted to swing on the hub toward and `from the clutch, means on the hub to hold itini both positions,- and means whereby the lever moves the reversing member to neutral position.

19. In combination, a driven shaft, power driven means to drive the same reversibly, manual means adapted to drive the same reversibly, a lever ito control the vpower driven means, a lever to control the manual means, and a manually operated lever connected to each of the other levers to operate them, substantially as set forth.y

20. In combination, a Ydriven shaft, power vdriven means to drive the same reversibly including a clutch, manualnieans adapted to drive the shaft i'eversibly also including a clutch, a hand lever and means connected to the hand-lever to render each lclutch active when the other is inactive. y

21. In combination, a reversing clutch member, a shifter therefor, a lever adapted to oscillate in either of two parallel planes,

[means normally connecting the lever to the shifter to reverse the clutch periodically, and4 means connecting the lever to the shifterat al different point when moving in the secondplanewhereby vthe clutch is rendered idle, substantially as set forth.` v

22. In combination, a reversing clutch member, a lever normally oscillating in a plane to reverse the clutch and connections whereby said lever places the clutch in neutral position when displaced from said plane, substantially'as set forth. i

23. In combination, a,y driven member,

means for reciprocating said member inius" lll)

cluding a reversing clutch, a lever normally oscillating in a fixed plane to reverse said clutch, manual means for actuating said reciprocating member including a clutch, and connections whereby said lever renders the reversing clutch idle and closes the other clutch when displaced from said plane substantially as set forth.

24. In combination, a driven member, means for 'reciprocating said member including a reversing clutch, a lever normally oscillating in a fixed plane to reverse said clutch, manual means for actuating said reciprocating member including a clutch, a lever movable in a plane at right angles to said fixed plane for shifting said latter clutch, and resilient connections between said levers, whereby movement of the first laterally from said fixed plane closes the second clutch, substantially as set forth.

25. In combination, a driven member means for reciprocating the same including a reversible clutch, a shifter for said clutch, a lever normally oscillating in a fixed plane to reverse said clutch at intervals, manual means for reciprocating said driven member including a clutch, a lever for shifting sail clutch and connections from said first lever to the shifter and to the second lever whereby lateral movement of said first lever closes the last named clutch and renders the reversing clutch idle, substantially as set forth.

26. In a reversing mechanism, a reversing clutch, an oscillating lever for reversing the same periodically, an abutment on the lever, opposed dogs for moving the lever to-and-fro by engagement with said abutment, and means whereby the abutment may be moved on the lever and out of reach of said dogs, substantially as set forth.

27. In combination, a driven member, means for reciprocating the same including a reversible clutch, a shifter for said clutch, a lever normally oscillating in a fixed plane to reverse said clutch at intervals, manual means for reciprocating said driven member including a clutch, a lever for shifting said clutch and connections from said first lever to the shifter and to the second lever whereby lateral movement said first lever closes the last named clutch and renders the reversing clutch idle, an abutment on said first-named lever, opposed dogs engaging said abut-ment to oscillate the lever, and means for moving said abutment 011 the lever out of the path of said dogs, substantially as set forth.

2S. In a reversing gearing, oppositely rotating driving members, a driven member adapted to engage either driving member, a lever for shifting said driven member, a hub mounted coaxially with said lever, a hand lever pivoted to swing with said hub and also swingable lengthwise of said hub, connections between said levers whereby such lengthwise swinging movement in one direction places the driven member in neutral position and means on the hub for holding the hand lever in the latterposition, substantially as set forth.

Q9. In a reversing gearing, oppositely rotating driving members, a driven member adapted to engage either driving member, a lever for shifting said driven member, a hub mounted coaxially with said lever, a hand lever pivoted to swing with said hub and also swingable lengthwise of said hub, connections between said levers whereby such lengthwise swinging movement in one direction places the driven member in neutral position, a projection on the hub having forwardly and rearwardly inclined faces, and a yieldable detent on the lever having corresponding faces to coact with those on the hub and hold the hand lever in forward or rear position, substantially as set forth.

30. In combination, a reversing clutchv having a pair of spaced clutch members, a reversing member adapted t'o engage either of them, a shifter pivoted on an axis extending transversely of the line of movement of the reversing member, a hand lever pivoted coaxially therewith and also on an axis transverse to that of the shifter and adapted to cause the clutch member by movements about different axis to assume forward, reverse or neutral position, substantially as set forth.

3l. In combination, a reversing clutch having a reversely movable clutch member, a movable shifter for said member, an independently movable actuator for the shifter means connecting the shifter and the actuator whereby movement of the actuator in different directions relatively to the shifter may cause said clutch member to assume forward, reverse or neutral position, and means operative at the limit of movement in the respective directions for. holding the clutch member in said respective positions, substantially as set forth.

In witness whereof, I have hereunto setmy hand and seal at llllashington, District of Columbia this thirteenth day of November, A. D. nineteen hundred and twenty.

PAUL STONER. [n s] lliitnesses E. W, BRADFORD, F. YY. DA1-IN. 

